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Application filed by Tuomo Halonen OyfiledCriticalTuomo Halonen Oy
Priority to FI882666ApriorityCriticalpatent/FI78640C/en
Publication of FI882666A0publicationCriticalpatent/FI882666A0/en
Application grantedgrantedCritical
Publication of FI78640BpublicationCriticalpatent/FI78640B/en
Publication of FI78640CpublicationCriticalpatent/FI78640C/en